Calculation of Chain Tension
Usually, in the beginning, tentatively establish the chain size to become applied referring to “Tentative determination of chain size”. Then, receive “Theoretical chain stress (T)” (P213) for your tentatively determined chain, and multiply the value by “Speed coefficient (K)”, to obtain “Substantial chain tension (Ta)”. For security, the substantial chain tension have to be lower than the “maximum allowable tension” stated inside the table of dimensions of respective chains. Consequently, the condition below should be pleased.
Safety affliction of chain stress
Substantial chain tension (Ta) ＝Theoretical chain tension (T) ×Speed coefficient (K)
Substantial chain tension (Ta) ＜Maximum allowable tension
If this issue isn’t satisfied, decide on a bigger chain by a single dimension and re-calculate.
Tentative determination of chain dimension
qDetermine the mass (excess weight) per unit length of parts such as chain and attachment ωc (kg/m or kgf/m) assuming that it is actually 10 % from the mass (weight) of the conveyed object ω1 (kg/m or kgf/m).
wIn reference for the calculation formulas on, acquire “Theoretical chain stress (T)” (kN or kgf) and “Speed coefficient (K)”, and determine “Substantial chain stress (Ta)” (kN or kgf).
eIn reference to your table of dimensions of chains,recognize the minimal chain, whose “maximum allowable tension” is greater than the “Substantial chain stress (Ta)”, and regard it as “tentatively made a decision chain”.
Worth of pace coefficient (K)
The speed coefficient (K) expresses the severity of operation issue in accordance for the traveling pace of chain since the situation gets severer because the traveling pace of chain turns into greater.
Multiply “Theoretical chain stress (T)” by “Speed coefficient (K)” to obtain “Substantial chain tension (Ta)”.
Whenever you style and design different conveyor systems making use of tiny conveyor chains, the next simple disorders has to be satisfied.
a. Chain stress: The real tensile strength in operation need to be drastically reduce compared to the specified power on the chain.
b. Strength of loaded elements of chain: The actual loads applied to attachments, this kind of as rollers of base chain, major rollers, side rollers, etc. in operation have to be significantly smaller than the strength of those elements.
c. Wear existence of chain: Lubrication situations to be sure the dress in life of chain have to be fulfilled.
d. Sag adjustment of chain: The sag of the chain must be kept optimum by tension adjusters, take-up gadgets, guides, and so on.
e. Others: Appropriate measures are taken to prevent rail put on, machine vibration along with other complications.
The following complement the over.